Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed461082a84798d…

MALICIOUS

PDF

90.1 KB Created: 2021-03-06 23:59:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: ada18f9a6fde7a5a1911190bf27eee07 SHA-1: 52a40249dabfb5a447bdd99b815b918346b3d6e7 SHA-256: eed461082a84798d62771ec82c201466def6448b510433bf22d0c94a537adc4b
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains multiple external URIs, including one hosted on disposable infrastructure, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains a string that appears to be a lure related to "Zelda twilight princess manga 7 deutsch", directing users to the URL https://mezovuduw.ru/123. No scripts were extracted, but the presence of external links and the malware detection indicate a likely attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://mezovuduw.ru/123?utm_term=zelda+twilight+princess+manga+7+deutsch PDF link annotation
    • http://big-ita.space/alpina_baby_2_informacion_nutricional8dh20.pdfIn PDF document text
    • http://xoroketogejuxe.mywebcommunity.org/84664619805.pdfIn PDF document text
    • https://totuseki.weebly.com/uploads/1/3/5/3/135322554/mixizifakiber-sasasat-bixuguv.pdfIn PDF document text
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/pejiwufofutesopoloro.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/zapufewamiwolowemaposima.pdfIn PDF document text
    • http://fumuroruzej.medianewsonline.com/how_to_connect_hp_2544_to_wireless_network.pdfIn PDF document text
    • http://repair-kompov.ru/43667403959cmuaz.pdfIn PDF document text
    • http://fozobojik.iblogger.org/tusuboxevemusis.pdfIn PDF document text
    • http://leadtop.co/bofepizagunerakosq9op.pdfIn PDF document text
    • https://kavosimodo.weebly.com/uploads/1/3/4/9/134901779/lirobosobozasitilufo.pdfIn PDF document text
    • http://mazafaka69pussy.online/golewotevp7dd.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/razadurodudupum-mawexirawez.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/64828524474.pdfIn PDF document text
    • https://regifevadep.weebly.com/uploads/1/3/4/4/134476302/dikixokifibupa.pdfIn PDF document text
    • http://zebisol.mypressonline.com/washington_dc_covid_testing_requirements.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fosagoba/shadow_blade_reload_game.pdfIn PDF document text
    • http://lamupimifuban.onlinewebshop.net/kagurupigigageteji.pdfIn PDF document text
    • http://gipebevu.atwebpages.com/reddit_cyberpunk_2077_ps4_graphics.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/sagezadojufitinaj.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/wijife.pdfIn PDF document text
    • http://vitimalu.rf.gd/consumer_reports_new_cars_2019_magazine.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/rosiwesopumukit.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/reliance_capital_limited_annual_report_2019.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE44 11228 bytes
SHA-256: 4cfe51578cf9e324fc438c60b6320cd9d98dd1ff84e2e23648bcdf487fb35453
font_01_sfnt_off00011377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11377 5388 bytes
SHA-256: aa4d3e60e8a1dd146ee9ea899d9d04a7ec86749998a71d91e2dc0f407d9a0d98
font_02_sfnt_off000125b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125B2 11012 bytes
SHA-256: 9add0bc1fd48026677ca6be6c47eb0a460132bd50f5be15b9407e7bc384afbd5
font_03_sfnt_off00014a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A05 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c